Resources for Teaching with an Earth History Approach

I have attempted to show that the geological record is extremely imperfect; that only a small portion of the globe has been geologically explored with care; that only certain classes of organic beings have been largely preserved in a fossil state; that the number both of specimens and of species, preserved in our museums, is absolutely as nothing compared with the number of generations which must have passed away even during a single formation...
- Charles Darwin, Origin of Species, 1859

The following annotated links lists deal with Earth history in general:

Age of the Dinosaurs: links to debate topic references on the hot-blooded vs. cold-blooded dinosaur argument and the K/T extinction.

Precambrian Resources: links to web resources about the formation of the Earth, the first continents, the origin of life, the Oxygen Revolution, Snowball Earth, and the Ediacaran fauna/Cambrian Explosion.